Hello,I'm trying to add a second email domain (gccsj.com) to our Exchange 2003 server. I can send email to *@gccsj.com internally, but when I try to send mail to any gccsj.com email from the outside (i.e. Yahoo, GMail, other 3rd party Exchange servers, etc.) I get the following error:This is an automatically generated Delivery Status NotificationDelivery to the following recipient failed permanently: jacob@gccsj.comTechnical details of permanent failure:PERM_FAILURE: SMTP Error (state 13): 551 This is not a relay host - mail must be to or from host domain.Any thoughts? I followed the steps at http://support.microsoft.com/default.aspx/kb/268838 but still not working.Thanks!Jacob